In 1903, the United States and the newly independent country of Panama signed the Hay-Bunau Varilla Treaty. This was a follow-up of the unsuccessful Hay-Herran Treaty, using largely the same terms. However, unlike Colombia, Panama would agree to the terms, which established a Panama Canal Zone[?] that was 10 miles wide.
... left side is now a perfect square; it is the square of (x + b/(2a)). The right side can be written as a single fraction; the common denominator is 4a2. W ...